Does every will need to be probated if uncontested?

Not all wills need to be probated. Probate of a will is essentially the last resort. If all assets were arranged by the decedent to go directly to the heirs (such as through joint accounts and beneficiary designations), then the will does not need to be probated. If there are assets that need to go through probate, then whether or not there is somebody who wants to contest the will, it needs to be probated. If there are probate assets, then no matter who is inheriting the assets, they need to be dealt with. The Probate Court has to put somebody in charge of the estate to collect the assets, pay debts, and make distributions of the remaining assets to the heirs.